NuGet Support

[blachniet]

I have added a nuspec file for generating a NuGet package to be submitted to http://nuget.org. To create the package:

1. Ensure NuGet.exe is in your path
2. Build the project with the Release configuration
3. Open cmd to the csproj directory
4. Execute the following command to create a NuGet Package: nuget.exe pack -Properties Configuration=Release
5. Upload the output .nupkg to http://nuget.org.

These changes resolve issue #7